Resolving icon.visible error and Discord Client Run Error

[kostino]

• Solved an Attribute Error for Icon on Darwin by removing icon.visible: The icon is visible by default on new version the use of this command is deprecated and removed from the instructions in the library (Creates confusion with the Icon.icon.visible attribute).
• Solved an Error related to Discord Client Start. The command Client.run needs to be run from the main thread so it fails when run inside a setup function for Icon.run(setup=setup_fnc) giving:

  ValueError: set_wakeup_fd only works in main thread

This was solved by using an alternate method for Discord client connection on a separate Thread. This method needs to be looked at further to allow the Thread to terminate when exiting via the icon menu!

[CedArctic]

Thank you for the great work, merging right away!